Grain-car door.



A. G. McGORMAGK.

GRAIN GAR DOOR.

APPLICATION rum) AUG.30, 1912.

1,106,395. Patented Aug.11,1914.

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'I'HE NORRIS PETERS (0. PHOTO LI'IHOn WASHINGTUN, D, C,

A. G. MGOORMAGK.

GRAIN GAR DOOR.

APPLICATION FILED AUG.30, 1912,

1,106,395. Patented Aug. 11,1914.

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a w/ mass/5s f/, mmm ra? AGAMZZMWMACK THE NORRIS PETERS CO. PHO'ILLLITHON WASHINGTON, D (I ANGUS G. MCCORMACK, OF FORT ARTHUR, ONTARIO, CANADA.

GRAIN-GAR DOOR.

Specification of Letters Patent. Patented Aug. 11, 1914;.

Application filed August 30, 1912.

Serial No. 717,908.

To all whom it may concern:

Be it known that I, ANeUs G. MCCOR-' Doors, of which the following is the specification. Y

My invention relates to improvements in grain car doors and the object of the invention is to devise a strong, durable and compact door which is non-leakable, which may be attached to an ordinary car without weakening the car posts, which may be readily raised to its open position in proximity to the car roof and which will automatically drop to its closed position when released, and it consists essentially of a vertical guideway located at each side of the car door and comprising vertical series of guide sections having a front slot opening of different widths and terminating at its upper end in a peculiarly constructed pocket, and 'a car door comprising vertically arranged sections having runners at each end thereof adapted to fit into the guideways in which the runners are moved from a section having a front slot opening of less diameter to a section having a front slot opening of greater diameter in the guide way so that when the upper end of the runner enters the pocket the major portion of the runner is capable of being swung outwardly through the front slot opening of the upper section of the vertical guideway,

and a series of bracing truss rods extending across the door at suitable distances apart as hereinafter more particularly explained by the following specification.

Figure 1 is a general perspective view of my car door partially broken away and in section and looking from the inside of the car. Fig. 2, is a horizontal section through Flg. 1. Fig. 3, is a vertical section through Fig. 1 showing the door in its closed position by full lines and in its open position by dotted lines. Fig. 4, is a vertical section through the grain door. Fig. 5, is a perspective detail of one of the guide ways. Fig. 6, is a perspective detail of a pair of runners. Fig. 7, is an enlarged perspective view of the upper portion or pocket of the guide way. Fig. 8, is a vertical section through the pocket. Fig. 9, is a cross section through the guide way and runners on line 00@ Fig. 3. Fig. 10, is a. similar view to Fig. 9 on line w-y Fig. 3. Fig. 11, is a similar view to F gs. Qand 10 on line m y Fig. 3.

In the drawings like letters of reference indicate corresponding parts in each figure.

The car door frame comprises side posts A and A sill A and the top plate A;

B is the floor of thecar and O is the sheetmg forming the wall of the car.

Vert1cal guide ways are secured by bolts D to the side posts A and A of the car door. The guide ways comprise a vertical portion D having a narrow slot openlng D, a vertical portion D at the upper end of the guide having a wide front slot opening D and an intermediate portion D having a front slot opening D of greater width than the slotopening of the portion D and of less width than the slot opening of the portion D and a supplemental guide way I).

D is a pocket located at the upper end of each of the guide ways. The front face of the pocket is formed are shaped with a vertical slot D.

D and D are orifices formed on the opposite face of the pocket for a purpose which will hereinafter appear.

D are are shaped dividing tongues located intermediately of the height of the interior of the pocket D to each side of the slot D. The pocket D is preferably formed separate from the guide ways and is connected thereto by means of dowel pins D The grain car door comprising the lower section E and the upper section E provided with end metallic vertical plates E connected to the door by bolts E The metallic plates E prevent the door being secured to the car frame by means of nails or otherwise and thus destroyed.

A runner is secured to each side of the car door section E, and comprising runner sections F and F The runner section F is provided with flanges F fitting the narrow portion D of the guide way. The runner section F is also providedwith a flanged port-ion F above the flanged portion F. The flange F fits into the base of the lower end of the intermediate portion D of the guide way. The runner sections F are secured to the door section B at each end runner F is alsoprovided with flanged portions F of the same width as the flanged section D and F slidable within the upper guide D signed to strike against the lower end of the pocket D when the door section is raised T so as to limit the upward movement of the runner in the guide way D Gr is a covering plate secured along the lower edge of the upper door section E". It will be noticed that the plate .Gr curves slightly outwardly and downwardly so as to receive the pressure of the grain in the car tending to force the upper door section E down against the lower door section; By this means the division between the door sections is rendered grain tight.

H is a strip of metal extending through .an opening in the lower edge of the lower doorsection E s0 asto form a pocket extending inwardly of the car and upon which the .pressure .of the grain in the'c-ar-bears so; as to force the lower door section down; against the floor of the car. This pocket: also serves as a means for prying the doors; upwardly, a lever or other suitable instruf ment being inserted in the pocket for that purpose.

I are truss rodsextending crosswise of the door sections and preferably secured at their ends in the runner F by thenuts I. By this means the door is stiifened preventing the bulging .of the door by grain pressure.

In operation when it is desired to empty the car the lowerdoor section is pried upwardly as hereinbefore described so as to relieve the grain pressure in the car. The upper door section is then slid upwardly until the flanged portion F comes opposite the opening in the back place of the pocket piece, and is then tilted so that F- engages .the bottom edge vof the opening. "The door section is then swung inwardly into the dotted position shown in Fig. ,3 the runner bar flanges passing through the enlarged opening D of the upper vertical guide section.

D The opening D forms a fulcrum in which the door section is turned. Similarly the lower door section B is carried up.- wardly until .the end of the flange F of the runner F strikes against the end of the pocket. In this position when the-door is swung outwardly the lower edge ofthe opening D forms a fulcrum on which the door is swung upwardly. Thedoor sections E and E are held in their :upper position against the roof of the car by any suitable means which it is not necessary here to describe.

th i c os p ionhe c me ns s r l as d t edoor s ion swi g ba k to t e vert al pris I I l end oi? each section, lateral flanged .From this description t Will be seen that I have devised a very simple form of grain car door which will be strong and durable in construction, which may be readily attached to any ordinary form of car and g j which may be easily raised to the open posi- F is an enlargement of the flange F detion and dropped automatically to its closed position.

What I claim as my invention is:

1. In a grain car door, the combination with the side posts of the door, of guide ways secured to the door having the front opening thereof increasing in width in successive sections, a pocket having an arcshaped lower end into-which the guide ways lead, a vertical front slot and an arc-shaped cross wall intermediate of its'height, grain door sections, runners connected to the door sections and having lateral projections at their upper endsdesigned to enter the pocket when the door is raised whereby the upper .door section is swingably supported on the arc-shape cross wall and the lower section is swingably supported in the arc-shaped lower end of the pocket, the major prtion of the runners being rigidly held in .the guide-ways in the closed position of the door and designed to swing outwardly through the front of the sections of increased width to the open position, as and forthe purpose specified.-

2. In a grain car door, the combination with the side posts of the door, of guide ways secured to the door having :the'front opening thereof increasing in width in successive sections, a pocket having an .arcshaped lower end-pinto which the guide ways lead, a vertical front slot and an arc-shaped cross wall intermediate of its height,-grain within the guide ways so as to slide upwardly into the pocket and lower flanged portions normally held in the. lower guide door sections, runners haying upper lateral flanged pieces at'their upper end and fitting sections and adapted to swing outwardly through the upper enlarged opening of one of the upper sections of the guide ways when the upper la-teral fianged piece has entered the pocket, ias and for the purpose specified. i

3. In a. grain car door, the combination with the side posts of the door, of guide ways secured to thedoor having the front opening thereof increasing in width in successive sections, a groove in the guide way comprising an inner wide portion forming the base-of the guide way and an outer grooved portion formed-at each side of the vertical opening of the guide way, a pocket having an arc-shaped lower end into which at the upper cnd ofyeach runner tting within the base or wide portion of the through the enlarged opening of the upper 10 groove of the guide way and having the guide way so that the door may be swung in lateral flanges fitting within the outer proximity to the roof, as and for the purgroovehat each side ofhthe guide way opend pose specified.

5 ing w ere y w en t e runner is move vertically the upper lateral projecting piece ANGUS MOQORMAOK' is retained in the guide way and carried Witnesses: into the pocket and the lateral flange of J. D. ROBERTS, the runner is freed so as to swing outwardly E. M. REEVE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0. 

